[填空题]
An oxygen molecule consists of two oxygen /geptohhk5/9 myrs; c.n1. ntatoms whose totaly f+-lr 0 p: *xwccuna,5y(xqtfv d5a3 mass is $5.3 \times10^{ -26}$ kg and whose moment of inertia about an axis perpendicular to the line joining the two atoms, midway between them, is $ 1.9\times10^{-46 }$ $kg \cdot m^2$ From these data, estimate the effective distance between the atoms. $\times10^{-10 }$ m